Hardware & Ironmongery. Keys & Key Rings. Screw Sizes: 1"x12g (25x5.45MM), 1.5"x 12g (38x 5.45 MM), 2 "x 12g (50x 5.45 MM) and 3 "x 12g (75x5.45 MM). Simply drill a small hole in each piece and wind together.
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